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使用Java中的Lucene搜索日期范围？

[英]Searching on date ranges with Lucene in Java?

原文 2009-10-29 15:22:16 3 1 java/ lucene/ date

Is it possible to search on date ranges using Lucene in Java? 是否可以使用Java中的Lucene搜索日期范围？ How do I build Lucene search queries based on date fields and dates ranges? 如何根据日期字段和日期范围构建Lucene搜索查询？ For example: 例如：

between specified dates 在指定日期之间
prior to a specified date 在指定日期之前
after a specified date 在指定日期之后
within the last 24 hours 在过去的24小时内
within the past week 在过去的一周内
within the past month. 在过去一个月内。

[Edit] i'm using Lucene 2.4.1 and my system is really legacy and really poorly tested so i would like if possible not to have to upgrade [编辑]我正在使用Lucene 2.4.1，我的系统真的很遗产，测试真的很差，所以如果可能的话我不想升级

1 个解决方案

Lucene (before version 2.9 anyway) only stores String values, and it only supports lexicographical range queries on that data. Lucene（无论如何在版本2.9之前）仅存储String值，并且它仅支持对该数据的词典范围查询。 So if you want to store date/time data and performa range queries on it, you need to explicitly format your data/time values in such a way as to make them lexicographically ordered. 因此，如果要在其上存储日期/时间数据和执行范围查询，则需要以使其按字典顺序排序的方式显式格式化数据/时间值。

For example, store your date/times as something like 2009-10-29T15:34:00 , and then do range queries like [2009-10-29T15:00:00 TO 2009-10-29T16:00:00] 例如，将您的日期/时间存储为类似2009-10-29T15:34:00 ，然后执行范围查询，如[2009-10-29T15:00:00 TO 2009-10-29T16:00:00]

As has been pointed out elsewhere, Lucene 2.9 finally introduced support for range queries against non-string data, making this all rather easier. 正如其他地方所指出的，Lucene 2.9最终引入了对非字符串数据的范围查询的支持，使这一切变得相当容易。